Claude and his father are on their mission to investigate the unexplored planet, Mirokinia. When they arrive at the planet, Claude mysteriously gets transported to another planet called Expel.
Wandering around in the woods trying to find a way back home, he saves a girl named Rena from a monster with his phase gun. Rena tells him that he is the Legendary Warrior of Light whom she's been looking for. The two set off in search of Sorcery Globe, which is believed to be the source of evils.